Your ERP Tracks Costs. CheckIT Verifies Your Invoices.
Premier is a full construction ERP — accounting, job costing, AIA billing, multi-entity. CheckIT verifies that every line on an incoming invoice matches what you actually contracted for. Different layers. They work together.
Premier users still check invoices manually. CheckIT is why they shouldn't have to.
Quick verdict
What Premier Construction Software does
Premier (originally Jonas Premier, now a Constellation Software company) is a purpose-built cloud ERP for mid-market general contractors, land developers, and home builders. Its strongest pillar is finance: AP/AR, job costing, WIP reporting, AIA billing (G702/G703), multi-entity reconciliation, and cash-flow forecasting at a depth that earned it Forbes Advisor's #1 Construction Cloud ERP four years running. The AI layer, Eddie, surfaces risk flags and answers financial questions on demand. A May 2026 partnership with Quickly adds embedded early-payment capabilities directly to the ERP. Implementation is in-house — Premier's CPAs and PMs co-author an Operational Playbook with each customer and target 60-day go-live.
- Construction accounting — AP/AR, GL, job costing, WIP, multi-entity reconciliation
- AIA billing (G702/G703), cost-plus billing, and pay-when-paid logic
- Project management — change orders, RFIs, submittals, drawing management
- Eddie AI assistant — risk flags, forecasting, and SmartUi AP automation
- Embedded early payments via Quickly partnership (May 2026)
- In-house implementation team and Operational Playbook co-build
Premier is widely regarded as the leading purpose-built construction cloud ERP for the mid-market — four consecutive years as Forbes Advisor #1 Construction Cloud ERP. CheckIT is not competing for that seat.
What CheckIT Invoice does
CheckIT Invoice is a line-item verification layer that sits in front of whatever ERP you already use — Premier, Sage, Procore, or a custom stack. It does one job: confirm that every individual line on an incoming invoice — material, quantity, unit rate, total — matches the contract, quote, or rate sheet you agreed to. Drop an invoice in. Minutes later, CheckIT returns a verified document with every line either green-checked or flagged, plus the dollar delta and a plain-English explanation of why each flag fired. No ERP integration. No IT department. No 60-day implementation. ROI on document one.
- Line-item verification against contract, quote, or rate-sheet baseline
- Explainable dollar delta per line, severity-ranked, audit-ready
- No ERP integration — upload a PDF and go
- 75% reduction in manual review time per document
Minutes per document. No 60-day implementation. Upload a PDF and get back an explainable, dollar-quantified report.
Feature comparison
Premier records. CheckIT verifies. You need both.
Premier was built to be a financial operating system. It records, posts, allocates, and reports — and it does that work better than almost anything else in the mid-market. Its job costing, WIP, and AIA billing are genuine ERP-grade. Its AI layer reads vendor emails and codes distributions. Its new Quickly partnership pulls early payments inside the platform.
But here is the structural gap every Premier customer eventually feels: Premier matches invoices to commitments. It does not verify them against contracted line items. When a sub bills $48,200 on a $50,000 PO, Premier's automation confirms the invoice ties to that PO and routes it for approval. What Premier was never designed to do is open the invoice, read every line, and ask: was this quantity actually delivered at this unit rate, and does that rate match what we contracted?
39% of construction invoices contain at least one error. 2.5% — average overbilling on invoice value. 75% — reduction in manual review time with CheckIT.
Industry benchmark data and CheckIT pilot results; results vary by project size, vendor mix, and contract structure.
Premier is the system of record. CheckIT is the verification layer that makes sure the record is right. Run them together and Premier's reporting gets sharper, because the data flowing into it has already been checked. Premier's forecasts get more trustworthy, because the actuals are clean. This is not a head-to-head. You need both.
If you need a full construction ERP — accounting, PM, multi-entity, forecasting — Premier is the right call.
A residential GC running 12 active jobs across two LLCs with AIA billing and intercompany reconciliation needs what Premier was built to do. CheckIT does not replace that.
If embedded payments inside your ERP matter, look at Premier + Quickly. The May 2026 Quickly partnership pulls early-payment capability directly into the Premier workflow. If payments speed and lien-waiver workflow are part of your evaluation, this is now a real Premier capability.
If you need every invoice line verified against the contract before it posts, add CheckIT to Premier.
An industrial owner running rate-sheet T&M across three EPCs, or a $75–100M heavy-civil GC with subcontractor invoices stacking up — Premier matches commitments; CheckIT verifies the line items. Run them together and close the loop your team is closing manually.
If you don't have an ERP yet and want to stop overbilling first, start with CheckIT.
No implementation, no IT, no 60-day go-live. Verify your first invoice the day you sign up. Layer in Premier (or any ERP) when you're ready for the full financial stack.
The cost of not verifying
Premier reports brilliantly on the numbers it's given. These are the numbers your team is absorbing manually today — and what CheckIT replaces.
Across the trades, 39% of construction invoices contain an error.
As a share of invoice value — quietly compounding across every job.
Minutes per document instead of the better part of an hour.
Extrapolated from active pilot data. Results vary by invoice volume and contract complexity.
CheckIT vs. Premier Construction Software — common questions
Not at the line-item level — Premier's SmartUi AP automation matches invoices to POs and commitments at the header level, then codes the distribution. It does not open each line and verify material, quantity, and unit rate against the contract you signed. That is the structural gap CheckIT was built to fill.
Yes — that is the recommended setup. Premier remains your construction ERP and system of record; CheckIT runs in front of it as the line-item verification layer, so invoices are clean before they post. There is no integration required to start — drop the PDF into CheckIT, then post the verified invoice into Premier as you do today.
Premier is a full construction ERP — accounting, job costing, AIA billing, multi-entity, forecasting. CheckIT is a single-purpose verification layer that confirms every invoice line matches what you contracted for. Premier records and reports costs; CheckIT verifies that those costs are correct before they hit the ledger. Different layers, designed to coexist.
CheckIT and Premier are not priced like-for-like, because they do different things. Premier is $125–$349/user/month plus a $15,000–$50,000 implementation fee. CheckIT is per-document or per-engagement with no implementation cost and no IT requirement. Most CheckIT customers recover the cost on document one.
No. CheckIT runs alongside any ERP — Premier, Sage 300 CRE, Procore, Foundation, Acumatica, or a custom stack — and it also works with no ERP at all. The only input CheckIT needs is the invoice PDF and a baseline (contract, quote, or rate sheet). Verification works the same way regardless of what records the cost downstream.
See CheckIT Invoice run against one of your invoices.
Upload one invoice. We'll show you exactly where the line items don't match your contract — and the dollar delta — within minutes. Keep Premier doing what it does best.
No ERP integration required. No credit card. No sales call to start.